User's Manual
10
•Backlight
To turn on/off the LCD backlight.
Click Menu/OK key to turn on/off.
•Language
Two optional Languages: Chinese, English
•GPS
To turn on/off the GPS.
Click Menu/OK key to turn on/off.
2. Device Info
•Device S/N
Check the Device S/N.
Server identifies different devices only by Device S/N.